水利水电技术（中英文）2025，Vol.56Issue(6)：13-25,13.DOI:10.13928/j.cnki.wrahe.2025.06.002
1961-2014年中国洪水-热浪复合极端事件特征的时空演变规律
Spatiotemporal evolution patterns of successive flood-heat extreme events in China from 1961 to 2014
摘要
Abstract
[Objective]Global warming has intensified the frequency of extreme events such as floods and heat waves,leading to an increased risk of successive flood-heat extreme(SFHE)events.Studying the spatiotemporal evolution of SFHE events has important scientific significance for the prevention and response to composite disaster risks.[Methods]Based on observation and reanalysis data,multiple statistical analysis method were used to analyze the spatiotemporal evolution of SFHE characteristics(frequency,duration,interval between floods and heat waves IFH,coverage area)in nine major river basins in China over the past 54 years(1961-2014),and explore the relative impact of floods and heatwaves on SFHE occurrence.[Results]The result indicate that:(1)The frequency,duration,and land coverage area of SFHE show a significant increasing trend,while IFH has a significant decreasing trend in China.(2)Spatially,the risk of SFHE is higher in the middle of the Southwest River basin,the south of the Yangtze River basin and the north of the Pearl River basin(＞34 times/decade),while the duration is longer in the lower reaches of the Yangtze River basin,the Southeast River basin and the south of the Huaihe River basin(＞13 d).(3)The periodicity of SFHE frequency varies in different watersheds,but there is a main cycle of 2.8a in China,which is most significant from the 1990 s to the early 2000 s.(4)The frequency of SFHE occurrence in the nine river basins is dominated by flood frequency,with the greatest impact in the Huaihe River basin.[Conclusion]The research result demonstrate that the risk of SFHE occurrence is significantly increasing,and the suddenness of SFHE is increasing in China.Overall,floods play a dominant role in the occurrence of SFHE.关键词
洪水热浪复合事件/洪水/热浪/演变特征/中国/长江流域/气候变化/时空变化Key words
successive flood-heat extreme events/flood/heatwave/evolutionary characteristics/China/Yangtze River Basin/climate change/spatiotemporal changes分类
建筑与水利引用本文复制引用
王慧杰,逯家宝,周君,武传号,黎梓涛..1961-2014年中国洪水-热浪复合极端事件特征的时空演变规律[J].水利水电技术（中英文）,2025,56(6):13-25,13.基金项目
国家自然科学基金项目(52279016) （52279016）
广东省自然科学基金项目(2023A1515011760) （2023A1515011760）
